yes! it's just problem hidden.. but if you want to move further with 1.7 then you have to hide these error....otherwise its hard to develop something with 1.7...
basically with the php5, joomla 1.7 cant follow the strict standards of php.

Hello
I am a first time user of Xammp and Joomla. I have upload Joomla in XAMMP/htdoc and when i tried to open my site i got the error as discussed above. Reading the forum i did the changes which looked like this (after the changes)

; display_errors
; Default Value: off
; Development Value: On
; Production Value: Off

; display_startup_errors
; Default Value: Off
; Development Value: On
; Production Value: Off